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 Burrowing owls use the tunnels dug by prairie dogs for shelter. If the number of prairie dogs and their tunnels decrease, what is most likely to happen to the population of burrowing owls in the same area?

  ◯ A. It will increase slightly.

  ◯ B. It will remain the same.

  ◯ C. It will decrease somewhat.

  ◯ D. It will decrease to zero. 

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Related questions

The town of Fremont met recently to discuss the pros and cons of protecting prairie dogs. Prairie dogs are burrowing rodents the size of rabbits that live in colonies underground in grasslands and prairies. Their numbers have been greatly reduced over the last few decades. Dr. Masser, a local biologist, pointed out that prairie dogs are an important part of the prairie food web, as they are prey for many birds and mammals. Without federal protection from both the Bureau of Land Management and the U.S. Fish and Wildlife Service, they could become extinct in a few years. Dr. Masser also explained that 2 of the 5 species of prairie dogs are already listed as either threatened or endangered. Local ranchers disagreed. Mr. Smith stated that he will continue to poison or shoot the prairie dogs on his land because they destroy the grasses that are needed by his livestock, and he encouraged the BLM to do the same on public lands.

(a) Explain the tragedy of the commons in general terms. Then, using the information you just read about the prairie dog and any other relevant information, incorporate the town of Fremont’s discussion into your explanation.

(b) Identify and discuss one argument in favor of preserving western grasslands as habitat for prairie dogs and one argument in favor of maintaining those grasslands for the grazing of livestock.

(c) Identify one action that the Bureau of Land Management and one action that the U.S. Fish and Wildlife Service could take to resolve this land use conflict.

CAN YOU PLEASE ANSWER 2 AND 3 :) THANK YOU

QUESTION 1 Use the information below to answer questions 1-3. Northern burrowing bugs feed on small arthropods that they search for under the bark of trees. These bugs vary considerably in the width of the pronotum; male bugs show greater variability than do females. Using light traps, you collect all of the bugs in the area, sort them by sex, and measure their pronotum width. By using a male-specific genetic markers you are able to determine which male is the father of each male offspring. The males do not associate with the females after they have mated; therefore any resemblance between males and their offspring is due only to genetics–not environment. The phenotypic variance of the males is 175.2, while the phenotypic variance of the offspring is somewhat less–146.1. The covariance in snout length between males and their offspring is 14.6. What is the heritability of pronotum width?

a) 0.083 b) 0.100 c) 0.167 d) 0.335 e) 0.500

QUESTION 2 Northern burrowing bugs shelter from cold weather in deep crevices in tree bark. Bugs who do not find shelter will not survive sever cold weather. During your study, a period of subfreezing temperatures caused all bugs that were not small enough to tunnel into crevices in the bark to die. Because of this, only those bugs with a pronotum width that averaged 12 mm narrower than the population mean to survive. Relative to the original population, how much will pronotum width differ in the next generation (young born after the severe cold period)?

a) 2.0 mm b) 3.0 mm c) 6.0 mm d) 12.0 mm e) You do not have enough data to tell

QUESTION 3 In Question 2, what type of selection is operating on pronotum width?

a) directional selection for a wider pronotum b) directional selection for a narrower pronotum c) stabilizing selection d) disruptive selection

Explain your answers, please.

Fire is a common occurrence in prairie grasslands. What do you think would happen to a grassland area if fire were excluded for many decades?

A. some trees would slowly begin to appear.
B. there would be no change.
C. it would become a desert.

D. it would slowly turn into a tropical rainforest

If you examine plant life in a very arid place like deathvalley, you may find some herbaceous desert plants that do not have any anatomical features for water conservation. How would you expect this as someone who has studied botany?

A. they absorb moisture from the atmosphere during night
B. they can grow with very little available water.
C. they can exist and grow for long periods on stored water.
D. they complete life cycle within the short time there is sufficient moisture.

E. they use crassulacean acid metabolism pathway

Which of the following is a difference between a prairie grassland and a savanna grassland?

A. Prairie soils are rich in nutrients
B. Savannas have provided some of the most productive agricultural lands.
C. Prairies support an immense population of animals.
D. Savannas have scattered tall trees

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